CVE-2025-38243 (GCVE-0-2025-38243)

Vulnerability from cvelistv5 – Published: 2025-07-09 10:42 – Updated: 2025-07-28 04:16
VLAI?
Title
btrfs: fix invalid inode pointer dereferences during log replay
Summary
In the Linux kernel, the following vulnerability has been resolved: btrfs: fix invalid inode pointer dereferences during log replay In a few places where we call read_one_inode(), if we get a NULL pointer we end up jumping into an error path, or fallthrough in case of __add_inode_ref(), where we then do something like this: iput(&inode->vfs_inode); which results in an invalid inode pointer that triggers an invalid memory access, resulting in a crash. Fix this by making sure we don't do such dereferences.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 0502d1127436a69b8c2e7cf309ae0ebff3332668 , < 401d098f92ea69d8a75f8b845daf343e511681ba (git)
Affected: b4c50cbb01a1b6901d2b94469636dd80fa93de81 , < ba8386d662cc51cc5382688bbf7a152b0b0b27cf (git)
Affected: b4c50cbb01a1b6901d2b94469636dd80fa93de81 , < 2dcf838cf5c2f0f4501edaa1680fcad03618d760 (git)
Create a notification for this product.
    Linux Linux Affected: 6.15
Unaffected: 0 , < 6.15 (semver)
Unaffected: 6.15.5 , ≤ 6.15.* (semver)
Unaffected: 6.16 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/btrfs/tree-log.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "401d098f92ea69d8a75f8b845daf343e511681ba",
              "status": "affected",
              "version": "0502d1127436a69b8c2e7cf309ae0ebff3332668",
              "versionType": "git"
            },
            {
              "lessThan": "ba8386d662cc51cc5382688bbf7a152b0b0b27cf",
              "status": "affected",
              "version": "b4c50cbb01a1b6901d2b94469636dd80fa93de81",
              "versionType": "git"
            },
            {
              "lessThan": "2dcf838cf5c2f0f4501edaa1680fcad03618d760",
              "status": "affected",
              "version": "b4c50cbb01a1b6901d2b94469636dd80fa93de81",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/btrfs/tree-log.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.15"
            },
            {
              "lessThan": "6.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.15.*",
              "status": "unaffected",
              "version": "6.15.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.16",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.15.5",
                  "versionStartIncluding": "6.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.16",
                  "versionStartIncluding": "6.15",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix invalid inode pointer dereferences during log replay\n\nIn a few places where we call read_one_inode(), if we get a NULL pointer\nwe end up jumping into an error path, or fallthrough in case of\n__add_inode_ref(), where we then do something like this:\n\n   iput(\u0026inode-\u003evfs_inode);\n\nwhich results in an invalid inode pointer that triggers an invalid memory\naccess, resulting in a crash.\n\nFix this by making sure we don\u0027t do such dereferences."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-07-28T04:16:01.184Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/401d098f92ea69d8a75f8b845daf343e511681ba"
        },
        {
          "url": "https://git.kernel.org/stable/c/ba8386d662cc51cc5382688bbf7a152b0b0b27cf"
        },
        {
          "url": "https://git.kernel.org/stable/c/2dcf838cf5c2f0f4501edaa1680fcad03618d760"
        }
      ],
      "title": "btrfs: fix invalid inode pointer dereferences during log replay",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38243",
    "datePublished": "2025-07-09T10:42:26.014Z",
    "dateReserved": "2025-04-16T04:51:23.996Z",
    "dateUpdated": "2025-07-28T04:16:01.184Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.